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DTSTAMP:20220715T000417Z
LOCATION:2008\, Level 2
DTSTART;TZID=America/Los_Angeles:20220712T114500
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UID:dac_DAC 2022_sess168_BEDES109@linklings.com
SUMMARY:SigmaDVD (sDVD): High Coverage Solution for Power Integrity Signof
 f
DESCRIPTION:Back-End Design, Engineering Tracks\n\nSigmaDVD (sDVD): High C
 overage Solution for Power Integrity Signoff\n\nVemuri, Chao, Santosh, Jai
 n, Mishra\n\nSigmaDVD (sDVD) is a unique simulation method that provides c
 omplete power grid noise coverage for 100% of the design instances.  This 
 novel simulation technique generates tens of thousands of unique switching
  scenarios for each instance independently, using Monte Carlo techniques, 
 and gathers the results into a distribution with a known three-sigma DVD v
 alue (sDVD) per instance.  This analysis closes a known gap in power grid 
 noise coverage available from other methods, such as vectorbased and vecto
 rless direct transient simulations as well as BQM.  The main consideration
 s when comparing this new IR-Drop flow with other techniques are coverage 
 (what % of hotspots from other IR-Drop methods does sDVD cover?) and how t
 o handle the increase in hotspots/violating instances caused by the massiv
 e increase in noise coverage.  We quantified this new flow’s coverage capa
 bilities through heatmap comparisons. In this presentation, we will first 
 discuss the theory of sDVD, various trials we conducted to compare sDVD wi
 th other IR-Drop methods, and main conclusions (such as cost/coverage) bas
 ed on our analyses.\n\nTopic: Back-End Design
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